The main object of this study was to investigate the effect of poor plant establishment on growth and yield of beet. Two experiments were undertaken with the approach of establishing poor plant stands by reduction of plant ...

A method of extracting a reasonable amount of organic carbon from the soil with minimum damage to the soil organic matter during extraction and purification was developed. This rapid extraction method was a modification ...

Methods for estimation of crop losses caused by disease are based largely on empirical models. Recently there has been an increased awareness that a more mechanistic approach with a greater understanding of the physiological ...

The effects of conservation tillage (direct drilling) on the soil-plant system were compared with those produced by conventional cultivation in a long term monoculture winter wheat trial on a Claremont silt loam in South ...

Changes brought about by chemical and physical weathering were investigated in a chronosequence of terrace soils near Reefton, New Zealand. The parent materials of the soil, which ranged in age from about 1000 to over ...

The study covered the period August 1971 to February 1975 and was conducted in three blackcurrant plots. One plot comprised mature bushes that were pruned but not sprayed during the course of the study; the other two plots ...

This thesis investigated if and how New Zealand damselflies (Odonata: Zygoptera) could be used as bioindicators of insecticide contamination of freshwater.
Two damselfly species are common throughout New Zealand: ...

Wheat gluten has unique properties that make it suitable for bread-making. As a result bread-making quality is closely associated with gluten quantity and quality. This research was conducted to look at the relationship ...

A series of studies was carried out to investigate feasibility of chemical fertility control in wild rabbit populations. Initial trials were designed to investigate in vivo kinetics and bioavailability properties of MPA ...

The objective of the project described in this thesis was to assess the influences on grapevine growth, fruit yield and quality of management practices, including training system (Vertical Shoot Positioning (VSP) versus ...